When it comes to mouse/cursor interaction, several decisions are made
based on what the current cursor type is. The assuption is that a
mouseMoveEvent() will always happen before a mousePressEvent(). In a
traditional desktop/mouse environment... this usually holds true.

However, in a touchscreen environment you only get a mouseMoveEvent()
when "clicked." Thus, you almost always have the wrong cursor and the
window does the wrong thing. It's not uncommon to get stuck in a
resizing mode.